Differences

Canon G15 advantages over Olympus E-PL7

Longer stills battery life

Cameras with longer battery life can take more photos before exhausting their batteries.

Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

770
vs
350 shots

Capture more photos

Internal flash

Internal flash
vs
None

Useful in a pinch for fill flash

Integrated ND filter

Yes
vs
No

Shoot in daylight with a large aperture or slow shutter

Higher max flash sync

1/2000
vs
1/250 sec

Reduce the effect of ambient light in flash shots

Shoots 24p video

Yes
vs
No

Gives your movies a big-screen feel

Faster JPEG shooting

10.2 fps
vs
8.7 fps

Faster JPEG shooting (burst mode)

Olympus E-PL7 advantages over Canon G15

Focus peaking

Peaker
vs
Non-peaker

Your camera will highlight what's in focus

Larger sensor

4/3
vs
1/1.7 inch

More sensor area. Bigger is (generally) better.

Less expensive

$499 vs
$598*

Save money for lenses or accessories

Bigger pixels

~ 3.75
vs
1.90 microns

Better low-light and dynamic range (all else equal)

Touchscreen

Touch
vs
No touch

Interact with your camera just like your smartphone

Tiltable Screen

Tiltable
vs
Fixed

Tilt the screen for shooting flexbility

Fast startup

~0.50
vs
2.2 sec

Faster startup lets you catch the moment

Built-in Wi-Fi

Wi-Fi
vs
None

Share your photos wirelessly

Better color depth

Better color depth

Color depth refers to the number of unique colors that a sensor can faithfully capture. Cameras with better color depth will demonstrate smoother transitions from one color to the next, and avoid "banding" in areas with subtle shading. (Blue skies are an example of where you might see color banding.)

More color depth is generally better, but you'll struggle to notice a difference between two cameras with less than 1 bit of difference. Color depth above 22 bits is considered excellent.

Want to learn more? Head over to our full glossary entry on color depth

Excellent image quality for its class including very good ISO performance; Improved performance and ergonomics over the E-PL5; LCD tilts 180 degree downward for easier selfies; Upgraded 3-axis IS system.